Chunk #18 — Some general methodological considerations — Sample selection

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Does nature have joints worth carving? A discussion of taxometrics, model-based clustering and latent variable mixture modeling.

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In sum, item and sample selection can induce circularity in the sense that a particular selection can bias the results of a latent structure analysis in favor of dimensionality or in favor of categories depending on the specific selection. This implies that the results of any analysis of dimensionality versus taxonicity need to be contextualized in terms of item selection, sample size and the population from which the sample was drawn.